Instrument panel having cover with reflection-reduction layer an

Details Instrument panel having cover with reflection-reduction layer an Instrument panel having cover with reflection-reduction layer an

1997-09-24

1999-10-26

Spyrou, Cassandra

Illumination

Illuminated scale or dial

362 29, 362 30, 359360, G01D 1128

Patent

active

059715561

ABSTRACT:
An instrument panel having a light source and a transparent cover in front of the light source. The transparent cover has a first surface at the front side of the cover and a second surface at the back side of the cover, and is formed of a polymeric wall and a polymeric film. The polymeric film has a reflection-reduction layer thereon and is bonded by intermolecular forces to the wall so that the polymeric film is on at least one of the first and second surfaces of the cover and the reflection-reduction layer is sandwiched between the film and the wall. The reflection-reduction layer is formed of a material selected from the group consisting of (a) oxides of magnesium, zinc, or aluminum, or alloys thereof, (b) hydroxides of magnesium, zinc, or aluminum, or alloys thereof, and (c) semi-metals and metals which are non-alkali metals and non-alkaline earth metals, alloys thereof, and combinations thereof. The method for making a transparent cover includes (a) applying a reflection-reduction layer onto a polymeric film, (b) placing the polymeric film with the reflection-reduction layer thereon on at least one inside surface of a mold so that the reflection-reduction layer is exposed; (c) filling the mold with a moldable polymer; and (d) allowing the moldable polymer to harden so that a transparent cover having an inmolded reflection-reduction layer is formed.

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